ES8605653A1 - Method for replacing PCB-containing coolants in electrical induction apparatus with substantially PCB-free dielectric coolants. - Google Patents
Method for replacing PCB-containing coolants in electrical induction apparatus with substantially PCB-free dielectric coolants.Info
- Publication number
- ES8605653A1 ES8605653A1 ES539090A ES539090A ES8605653A1 ES 8605653 A1 ES8605653 A1 ES 8605653A1 ES 539090 A ES539090 A ES 539090A ES 539090 A ES539090 A ES 539090A ES 8605653 A1 ES8605653 A1 ES 8605653A1
- Authority
- ES
- Spain
- Prior art keywords
- pcb
- coolant
- electrical
- tank
- cooling liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G21/00—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents
- C10G21/006—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents of waste oils, e.g. PCB's containing oils
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Organic Insulating Materials (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- General Induction Heating (AREA)
- Processing Of Solid Wastes (AREA)
- Transformer Cooling (AREA)
- Lubricants (AREA)
- Insulating Of Coils (AREA)
Abstract
Method for replacing a coolant containing PCB in electrical induction having a tank containing the PCB-containing coolant and an electrical winding and porous solid cellulosic electrical insulation immersed in the PCB-containing coolant with a substantially PCB-free permanent coolant to convert said electrical apparatus into one in which the rate of elution of PCB into the PCB-free coolant is below the maximum allowable rate of elution into the coolant of an electrical apparatus rated as non-PCB, the porous electrical insulation being impregnated with said PCB-containing coolant. The method comprises the steps of: (a) draining the PCB-containing coolant from said tank to remove a major portion of the PCB-containing coolant contained by it (b) filling the tank with an interim dielectric cooling liquid that is (i) miscible with PCB, (ii) sufficiently low in viscosity to circulate within said tank and penetrate the interstices of the porous solid electrical insulation, and (iii) capable of being readily separated from said PCB (c) electrically operating the electrical induction apparatus for a period sufficient to elute PCB contained in the PCB-containing coolant impregnated in the porous insulation therefrom into the interim dielectric cooling liquid (d) thereafter draining the interim dielectric cooling liquid containing the eluted PCB from the tank (e) repeating the cycle of steps (b), (c) and (d), when the rate of elution of PCB into the interim dielectric cooling liquid exceeds 0.55 ppm of PCB per day based on the weight of the permanent dielectric coolant, a sufficient number of times until the rate of elution of PCB into the interim dielectric cooling liquid does not exceed the rate of 50 ppm PCB based on the weight of the permanent coolant after 90 days of electrical operation and (f) filling the tank with a substantially PCB-free permanent coolant selected from the group consisting of high boiling, high viscosity, silicone oils, synthetic ester fluids, poly-alpha-olefin oils and hydrocarbon oils.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US56630683A | 1983-12-28 | 1983-12-28 | |
| US67527884A | 1984-11-27 | 1984-11-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES8605653A1 true ES8605653A1 (en) | 1986-03-16 |
| ES539090A0 ES539090A0 (en) | 1986-03-16 |
Family
ID=27074146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES539090A Expired ES8605653A1 (en) | 1983-12-28 | 1984-12-27 | Method for replacing PCB-containing coolants in electrical induction apparatus with substantially PCB-free dielectric coolants. |
Country Status (20)
| Country | Link |
|---|---|
| EP (1) | EP0147860B1 (en) |
| JP (1) | JPH0644534B2 (en) |
| KR (1) | KR900005687B1 (en) |
| AR (1) | AR244461A1 (en) |
| AU (1) | AU570294B2 (en) |
| BR (1) | BR8407245A (en) |
| CA (1) | CA1262606A (en) |
| DE (1) | DE3462640D1 (en) |
| ES (1) | ES8605653A1 (en) |
| FI (1) | FI78367C (en) |
| GR (1) | GR82586B (en) |
| HK (1) | HK56389A (en) |
| IL (1) | IL73971A (en) |
| IN (1) | IN163604B (en) |
| MX (1) | MX168456B (en) |
| NZ (1) | NZ210768A (en) |
| PH (1) | PH23329A (en) |
| PT (1) | PT79758A (en) |
| SG (1) | SG22889G (en) |
| WO (1) | WO1985002937A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4790337A (en) * | 1984-07-18 | 1988-12-13 | Quadrex Hps Inc. | Apparatus for removing PCB's from electrical apparatus |
| US4738780A (en) * | 1984-11-27 | 1988-04-19 | Union Carbide Corporation | Method for replacing PCB-containing coolants in electrical induction apparatus with substantially PCB-free dielectric coolants |
| GB2182925B (en) * | 1985-11-13 | 1990-07-18 | Quadrex Hps Inc | Process for removing pcb's from electrical apparatus |
| EP0290098B1 (en) * | 1987-05-07 | 1990-11-14 | Micafil Ag | Process and apparatus for extracting oil or polychlorinated biphenyls from impregnated electrical components by means of a solvating agent, and distillation of the solvent |
| US4950837A (en) * | 1989-07-18 | 1990-08-21 | General Electric Company | Method for reclassifying PCB transformers |
| US6380454B1 (en) | 1991-03-15 | 2002-04-30 | Luciano A. Gonzalez | Destruction of polychlorinated biphenyls |
| JPH0555054A (en) * | 1991-08-26 | 1993-03-05 | Mitsubishi Electric Corp | Medium filling method for electrical machinery |
| FR2705140B1 (en) * | 1993-05-11 | 1995-07-28 | Elf Antar France | Method of replacing the lubrication product for the conversion of existing refrigeration systems to refrigerants without action on atmospheric ozone. |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR7703653A (en) * | 1976-06-08 | 1978-04-04 | Rhone Poulenc Ind | NEW DIELETRIC LIQUIDS |
| US4124834A (en) * | 1977-10-05 | 1978-11-07 | Westinghouse Electric Corp. | Electrical inductive apparatus |
| US4357175A (en) * | 1980-04-10 | 1982-11-02 | Stauffer Chemical Company | Process for cleaning the interiors of vessels |
| US4299704A (en) * | 1980-05-19 | 1981-11-10 | General Electric Company | Method for removing polychlorinated biphenyls from contaminated transformer dielectric liquid |
| US4379746A (en) * | 1980-08-18 | 1983-04-12 | Sun-Ohio, Inc. | Method of destruction of polychlorinated biphenyls |
| US4396436A (en) * | 1981-07-20 | 1983-08-02 | Aluminum Company Of America | Method and flushing for removing hydraulic fluid from hydraulic systems |
-
1984
- 1984-12-27 ES ES539090A patent/ES8605653A1/en not_active Expired
- 1984-12-27 PT PT79758A patent/PT79758A/en not_active IP Right Cessation
- 1984-12-27 IN IN1041/MAS/84A patent/IN163604B/en unknown
- 1984-12-27 DE DE8484116402T patent/DE3462640D1/en not_active Expired
- 1984-12-27 PH PH31662A patent/PH23329A/en unknown
- 1984-12-27 AR AR84299108A patent/AR244461A1/en active
- 1984-12-27 GR GR82586A patent/GR82586B/en unknown
- 1984-12-27 EP EP84116402A patent/EP0147860B1/en not_active Expired
- 1984-12-28 BR BR8407245A patent/BR8407245A/en not_active IP Right Cessation
- 1984-12-28 JP JP60500183A patent/JPH0644534B2/en not_active Expired - Lifetime
- 1984-12-28 CA CA000471203A patent/CA1262606A/en not_active Expired
- 1984-12-28 WO PCT/US1984/002115 patent/WO1985002937A1/en active IP Right Grant
- 1984-12-28 KR KR1019850700196A patent/KR900005687B1/en not_active IP Right Cessation
- 1984-12-28 AU AU37832/85A patent/AU570294B2/en not_active Ceased
- 1984-12-28 MX MX203911A patent/MX168456B/en unknown
- 1984-12-30 IL IL73971A patent/IL73971A/en unknown
-
1985
- 1985-01-04 NZ NZ210768A patent/NZ210768A/en unknown
- 1985-08-28 FI FI853299A patent/FI78367C/en not_active IP Right Cessation
-
1989
- 1989-04-11 SG SG22889A patent/SG22889G/en unknown
- 1989-07-13 HK HK563/89A patent/HK56389A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FI853299L (en) | 1985-08-28 |
| AU570294B2 (en) | 1988-03-10 |
| KR850700178A (en) | 1985-10-25 |
| EP0147860B1 (en) | 1987-03-11 |
| JPH0644534B2 (en) | 1994-06-08 |
| IN163604B (en) | 1988-10-15 |
| HK56389A (en) | 1989-07-21 |
| EP0147860A2 (en) | 1985-07-10 |
| JPS61500880A (en) | 1986-05-01 |
| WO1985002937A1 (en) | 1985-07-04 |
| DE3462640D1 (en) | 1987-04-16 |
| PH23329A (en) | 1989-07-14 |
| MX168456B (en) | 1993-05-25 |
| FI853299A0 (en) | 1985-08-28 |
| IL73971A (en) | 1988-12-30 |
| CA1262606A (en) | 1989-11-07 |
| AU3783285A (en) | 1985-07-12 |
| PT79758A (en) | 1985-01-01 |
| FI78367B (en) | 1989-03-31 |
| BR8407245A (en) | 1985-11-26 |
| KR900005687B1 (en) | 1990-08-06 |
| EP0147860A3 (en) | 1985-08-07 |
| ES539090A0 (en) | 1986-03-16 |
| GR82586B (en) | 1985-04-30 |
| FI78367C (en) | 1989-07-10 |
| SG22889G (en) | 1990-07-06 |
| AR244461A1 (en) | 1993-10-29 |
| NZ210768A (en) | 1988-07-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19970612 |